[Resolved] trouble with upgrade to version 3.1.9

I had problem with the last release, I couldn’t manage the personalizer panel because it open and close over and over. When I look the bowser console the warning said:

Consider using 'dppx' units, as in CSS 'dpi' means dots-per-CSS-inch, not dots-per-physical-inch, so does not correspond to the actual 'dpi' of a screen. In media query expression: print, not all, (-webkit-min-device-pixel-ratio: 1.25), (min-resolution: 120dpi)
Consider using 'dppx' units, as in CSS 'dpi' means dots-per-CSS-inch, not dots-per-physical-inch, so does not correspond to the actual 'dpi' of a screen. In media query expression: (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) load-scripts.php?c=0&load%5B%5D=customize-base,customize-controls,accordion,underscore,backbone,jqu…:2
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